Role of visual evoked potential in management of rhegmatogenous retinal detachment

ABSTRACT

Fifteen cases with rhegmatogenous retinal detachment have been studied pre-and postoperatively by the visual evoked potential [EVP]. The EVP technique involves the whole field and left-right; upper-lower hemifield. The patients are divided into four groups according to the extent of detachment. There are improvement in the mean latencies and amplitudes after the operation for each group. The first group shows 5.8% of improvement of the mean latency, 101.2% for the mean amplitude; the second group 21.85% and 72.39%; the third group 27.32% and 145.31%, and the fourth group 28% and 202.02%. When the macula was not detached before the operation, the mean latency stows 12.95% improvement compared to 32.90% when the macula was detached. The recent retinal detachment shows 19.9% improvement of the mean latency compared of the mean latency pared to 27.64% for the old detachment. This early study shows the value of EVP in evaluating retinal detachment pre- and postoperatively